To score an A or even better, a S, you must try and defeat the enemies and loose not so much health. Also, the more enemies that you kill, the more points you gain, and more points mean better rank and more upgrade points.
The base word for invasion is "invade."
Define "major", and we can talk more. If we define "major" as "events which changed or could have changed the path of history", there are a dozen or more. In Europe: Dunkirk Battle of Britain the U-Boat "battle of the Atlantic" Battle of Stalingrad Normandy Invasion of France Battle of the Bulge In the Pacific Pearl Harbor Battle of Midway Battle for Guadalcanal and the Solomon Islands Invasion of Guam and Siapan (Remember that the B-29s which bombed Japan were based in Saipan) Battle of Iwo Jima (Iwo Jima was the base for Japanese fighters attacking the B-29s from Siapan. When taken, it became an emergency repair base for B-29s too badly damaged to get back to Saipan.) Battle of Leyte Gulf and the invasion of the Philippines Battle of Okinawa and the Kamikaze attacks
If Britain lost the Battle of Britain, they would have lost air space control and made it much easier to be invaded by Nazi Germany. This later gave a frim base from which to launch the D-Day invasion - if Britain had been lost there would have been no base from which to launch D-Day
well there's this place called Riverside Hobby Shop on Folsom street near downtown Sacramento they sell gundam model kits too might want to try that place. that's where i got my action base stand at
The famous battle of San Juan Hill. The important battle of Manila which created the Philippine American War. The 1898 Invasion of Guantanamo Bay which provided shelter for the US Fleet and a forward operating base that lead to all future Caribbean victories.
Battle of Fire Support Base Ripcord happened in 1970.
to eliminate a possible Cuban military base in Grenada
Okinawa
The failure of the Confederacy to capitalize on its victory at the Battle of Chickamuga, basically helped its defeat at Chattanooga and had allowed an invasion route to be opened into Georgia with Chattanooga as a base for Union operations. Union General Sherman took advantage of this and his Atlanta campaign began.
They saw it as a potential base for a Spanish invasion.
For a battle base.
Officially, Operation Overlord, or more commonly it was known as 'D-Day' or sometimes as the Battle of Normandy.